2 files changed, 107 insertions, 0 deletions
diff --git a/management/commands/_private.py b/management/commands/_private.py
new file mode 100644
index 0000000..4000f6b
--- /dev/null
+++ b/management/commands/_private.py
@@ -0,0 +1,69 @@
+from bs4 import BeautifulSoup
+from django.utils import timezone
+from edt.models import Group, Room
+
+import datetime
+import requests
+
+
+class Week:
+    def __init__(self, number, start):
+        self.number = number
+        self.start = timezone.make_aware(datetime.datetime.strptime(start, "%d/%m/%Y"))
+
+    def get_day(self, id):
+        return self.start + datetime.timedelta(id)
+
+def add_time(date, time):
+    delta = datetime.timedelta(hours=time.hour, minutes=time.minute)
+    return date + delta
+
+def get_from_db_or_create(cls, name):
+    obj = cls.objects.all().filter(name=name).first()
+    if obj == None:
+        obj = cls(name=name)
+        obj.save()
+
+    return obj
+
+def get_events(soup, weeks, week):
+    for event in soup.find_all("event"):
+        title = None
+        type_ = None
+        groups = None
+        rooms = None
+
+        if weeks[event.rawweeks.text].number != week:
+            continue
+
+        if event.resources.module is not None:
+            title = event.resources.module.text
+
+        if event.category is not None and title is not None:
+            type_ = event.category.text
+
+        if event.resources.group is not None and type_ is not None:
+            groups = [get_from_db_or_create(Group, item.text) for item in event.resources.group.find_all("item")]
+
+        if event.resources.room is not None and groups is not None:
+            rooms = [get_from_db_or_create(Room, item.text) for item in event.resources.room.find_all("item")]
+
+            date = weeks[event.rawweeks.text].get_day(int(event.day.text))
+            begin = add_time(date, datetime.datetime.strptime(event.starttime.text, "%H:%M"))
+            end = add_time(date, datetime.datetime.strptime(event.endtime.text, "%H:%M"))
+
+            yield (title, type_, groups, rooms, begin, end,)
+
+def get_weeks(soup):
+    weeks = {}
+    for span in soup.find_all("span"):
+        weeks[span.alleventweeks.text] = Week(int(span.title.text), span["date"])
+
+    return weeks
+
+def get_xml(url):
+    r = requests.get(url)
+    r.encoding = "utf8"
+
+    soup = BeautifulSoup(r.text, "html.parser")
+    return soup
diff --git a/management/commands/timetables.py b/management/commands/timetables.py
new file mode 100644
index 0000000..58897a1
--- /dev/null
+++ b/management/commands/timetables.py
@@ -0,0 +1,38 @@
+from django.core.management.base import BaseCommand, CommandError
+from django.utils import timezone
+from edt.models import Group, Room, Course
+
+from bs4 import BeautifulSoup
+
+from ._private import get_events, get_weeks, get_xml, Week
+
+import datetime
+import requests
+
+class Command(BaseCommand):
+    help = "Fetches the specified celcat timetable"
+
+    def add_arguments(self, parser):
+        parser.add_argument("url", type=str)
+
+    def handle(self, *args, **options):
+        url = options["url"]
+
+        _, week, day = timezone.now().isocalendar()
+        if day >= 6:
+            _, week, _ = (timezone.now() + datetime.timedelta(weeks=1)).isocalendar()
+
+        soup = get_xml(url)
+        weeks = get_weeks(soup)
+
+        for name, type_, groups, rooms, begin, end in get_events(soup, weeks, week):
+            
+            course = Course.objects.create(begin=begin, end=end)
+
+            course.name = name
+            course.type = type_
+            course.groups.add(*groups)
+            course.rooms.add(*rooms)
+            course.save()
+
+        self.stdout.write(self.style.SUCCESS("Done."))